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下面各题怎样简便怎样算.40.5+28.7-20.523.75-3.625-0.37510.37+4.96-4.3712.85-11.2+4.15-3.8.
题目详情
下面各题怎样简便怎样算. 40.5+28.7-20.5 23.75-3.625-0.375 10.37+4.96-4.37 12.85-11.2+4.15-3.8. |
40.5+28.7-20.5
23.75-3.625-0.375
10.37+4.96-4.37
12.85-11.2+4.15-3.8.
40.5+28.7-20.5
23.75-3.625-0.375
10.37+4.96-4.37
12.85-11.2+4.15-3.8.
40.5+28.7-20.5
23.75-3.625-0.375
10.37+4.96-4.37
12.85-11.2+4.15-3.8.
40.5+28.7-20.5
23.75-3.625-0.375
10.37+4.96-4.37
12.85-11.2+4.15-3.8.
▼优质解答
答案和解析
(1)40.5+28.7-20.5,=(40.5-20.5)+28.7,=20+28.7,=48.7;(2)23.75-3.625-0.375,=23.75-(3.625+0.375),=23.75-4,=19.75;(3)10.37+4.96-4.37,=(10.37-4.37)+4.96,=6+4.96,=10.96;(4)12.85...
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